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Medium
- oral histories (literary works)33
- transcripts27
- interviews12
- color transparencies9
- photographic transparencies9
- articles8
- instructional materials8
- resource units8
- teaching guides8
- interactive resource6
- sound recordings6
- video recordings (physical artifacts)6
- oral histories (literary genre)4
- PDF3
- black-and-white photographs3
- files (document groupings)3
- fliers (printed matter)3
- identification photographs2
- photomechanical prints2
- color films (visual works)1